With regard to turnip, carrot, sweet potato and potato, three belong to the same category. Identify those three modifications and mention whether they are homologous or analogous. Also mention the reason why the fourth modifications do not belong to the same category.

Dear student, 

Carrot, turnip and sweet potato are modified roots. While potato are stem tuber-swollen tip of an underground stem. The three grouped vegetable which are modified roots and potato show similar characteristics but have different origin. Since the function of all of them is to store food therefore they describe as analogous structures.

Regards
 

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they are analogus as only the structure is same
but they are variations also
  • -3
turnip.carrot and sweet potato are modified root . so these 3 belongs to the homologous
whereas potato is modified stem so it do not belong to this group

 
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